Enriched gradient recovery for interface solutions of the Poisson-Boltzmann equation

Accurate calculation of electrostatic potential and gradient on the molecular surface is highly desirable for the continuum and hybrid modeling of large scale deformation of biomolecules in solvent. In this article a new numerical method is proposed to calculate these quantities on the dielectric in...

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Veröffentlicht in:Journal of computational physics. - 1986. - 421(2020) vom: 15. Nov.
1. Verfasser: Borleske, George (VerfasserIn)
Weitere Verfasser: Zhou, Y C
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Journal of computational physics
Schlagworte:Journal Article Biomolecular electrostatics Gradient recovery High accuracy Interface methods Numerical solution Poisson-Boltzmann equation
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520 |a Accurate calculation of electrostatic potential and gradient on the molecular surface is highly desirable for the continuum and hybrid modeling of large scale deformation of biomolecules in solvent. In this article a new numerical method is proposed to calculate these quantities on the dielectric interface from the numerical solutions of the Poisson-Boltzmann equation. Our method reconstructs a potential field locally in the least square sense on the polynomial basis enriched with Green's functions, the latter characterize the Coulomb potential induced by charges near the position of reconstruction. This enrichment resembles the decomposition of electrostatic potential into singular Coulomb component and the regular reaction field in the Generalized Born methods. Numerical experiments demonstrate that the enrichment recovery produces drastically more accurate and stable potential gradients on molecular surfaces compared to classical recovery techniques 
650 4 |a Journal Article 
650 4 |a Biomolecular electrostatics 
650 4 |a Gradient recovery 
650 4 |a High accuracy 
650 4 |a Interface methods 
650 4 |a Numerical solution 
650 4 |a Poisson-Boltzmann equation 
700 1 |a Zhou, Y C  |e verfasserin  |4 aut 
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